minor #581 Duplicate array key (demis-palma)
minor #581 Duplicate array key (demis-palma)

This PR was merged into the 5.3-dev branch.

Discussion
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Duplicate array key

If multiple elements in the array declaration use the same key, only the last one will be used as all others are overwritten.
I decided to delete 'xml'  => 'text/xml' and to keep 'xml'  => 'application/xml' for the reason explained here:
http://stackoverflow.com/questions/4832357/whats-the-difference-between-text-xml-vs-application-xml-for-webservice-respons

Commits
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4644115 Duplicate array key

michabbb-backup/swiftmailer,Rotzbua/swiftmailer,tweakers-dev/swiftmailer,Chhunlong/swiftmailer,papagel/swiftmailer,denpamusic/swiftmailer,jamesggordon/swiftmailer,michabbb-backup/swiftmailer,handautsav/swiftmailer,papagel/swiftmailer,kuslahne/swiftmailer,Dubz/swiftmailer,gencer/swiftmailer,zghosts/swiftmailer,fvosberg/swiftmailer,jamesggordon/swiftmailer,zghosts/swiftmailer,c960657/swiftmailer,gencer/swiftmailer,Dubz/swiftmailer,gburyakovsky/swiftmailer,kuslahne/swiftmailer,Chhunlong/swiftmailer,fvosberg/swiftmailer,voku/swiftmailer,robertklein/swiftmailer,gburyakovsky/swiftmailer,Rotzbua/swiftmailer,tweakers-dev/swiftmailer,deguif/swiftmailer,handautsav/swiftmailer,swiftmailer/swiftmailer,swiftmailer/swiftmailer,deguif/swiftmailer,robertklein/swiftmailer,voku/swiftmailer,c960657/swiftmailer,denpamusic/swiftmailer